Perhaps Murksphere/Swindler's orb should replace Relic Shield
I find that even when I'm zoning and taking risks with poking as an utility support, as long as they have a tank support their adc can still gradually out CS mine's anyways through relic shield. Whether or not they are playing as their match up should via poke, they will almost always have an advantage via engage potential.
As most people are aware, timing relic shields usually tends to be an ass because sometimes adc's fail to give their support a cannon minion. Murk/Swindler accomplishes a similar thing as relic shield - protect the adc from poke, and it takes more practice timing the shield than pray your adc lets you share cs. Right now the gp5 is a little OP, but they can just give it a numbers tap so it's on par with other gp5 in terms of generating gold or maintaining the lane.